Q1 Level 7- Law of Conservation
Authored by Shawn Krucek
Science
7th Grade
NGSS covered
Used 37+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which law states that mass (matter) cannot be created or destroyed, only transformed?
Law of Periodic Tables
Law of Conservation of Mass (matter)
Law of Compound Formations
Law of Antoine Lovoisier
Tags
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A physical change, like getting a haircut, follows the law of conservation because...
You're not creating or destroying matter, only changing it
Matter is getting destroyed when you cut it with scissors
Matter is created when you grow new hair
You hair is transformed into a different substance
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The beaker on the right is sealed with a cork, which prevents matter from being able to go in or our of the beaker. This is called a(n)....
Open System
Closed System
Chemical System
Compound System
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A chemical change like rust on a car still follows the law of conservation of mass (matter), because...
Iron and Oxygen are created out of thin air
Matter is destroyed when rust forms
Iron and Oxygen combine to transform into rust
This example breaks the law of conservation
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The beaker on the left has an opening at the top, which allows matter to escape and move into the surrounding air. This is an example of a(n)...
Open System
Closed System
Conservation System
Compound System
Tags
NGSS.MS-PS1-2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If you open up a can of pop and leave it on the counter overnight. What will happen to it's mass if you were to measure it before and after?
It's mass will increase because it's a closed system
It's mass will decrease because gas escapes the open system
It's mass will stay the same because it's a closed system
It's mass will stay the same because it's an open system
Tags
NGSS.MS-PS1-2
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
You weigh a piece of paper, then rip it into pieces, and then weigh all the pieces together on the scale. What will you find about the change in mass?
Mass will decrease because the smaller pieces add up to less
Mass will increase because the pieces will add up to more
Mass stays the same because a physical change has the same matter
This example doesn't follow the law of conservation
Tags
NGSS.MS-PS1-5
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